condition	mean	min	max
4 h after light	8.13861	7.741810000000001	8.339839999999999
8 h after light	9.071386666666667	8.81419	9.49284
12 h after light	8.529716666666667	8.33505	8.862639999999999
4 h after dark	7.71287	7.45973	8.02324
8 h after dark	7.5766366666666665	7.44486	7.649789999999999
12 h after dark	7.440906666666667	7.036410000000001	7.6919699999999995